I thought that Zoho Wiki had the capability to display previous versions of a page, and optionally reinstate them.  But I can't find a current doc on this subject -- is there one?

From what I remember, that capability was accessed via the Version number link on the page, which pops up a panel showing a table of previous page versions: Version, Edited By, and Modified date. 

I thought that table included clickable buttons or links to view or reinstate a previous version. But when I do this now, while the table does show the list of previous versions, but there are no clickable features to make anything happen.

Am I looking in the wrong place, or has this function disappeared?